HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 225
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HD64F2676VFC33
Manufacturer Part Number
HD64F2676VFC33
Description
IC H8S MCU FLASH 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2676VFC33
Core Processor
H8S/2600
Core Size
16-Bit
Speed
33MHz
Connectivity
IrDA, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
103
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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6.6
In this LSI, external space areas 2 to 5 can be designated as DRAM space, and DRAM interfacing
performed. The DRAM interface allows DRAM to be directly connected to this LSI. A DRAM
space of 2, 4, or 8 Mbytes can be set by means of bits RMTS2 to RMTS0 in DRAMCR. Burst
operation is also possible, using fast page mode.
6.6.1
Areas 2 to 5 are designated as DRAM space by setting bits RMTS2 to RMTS0 in DRAMCR. The
relation between the settings of bits RMTS2 to RMTS0 and DRAM space is shown in table 6.4.
Possible DRAM space settings are: one area (area 2), two areas (areas 2 and 3), four areas (areas 2
to 5), and continuous area (areas 2 to 5).
Table 6.4
Note:
With continuous DRAM space, RAS2 is valid. The bus specifications (bus width, number of wait
states, etc.) for continuous DRAM space conform to the settings for area 2.
6.6.2
With DRAM space, the row address and column address are multiplexed. In address multiplexing,
the size of the shift of the row address is selected with bits MXC2 to MXC0 in DRAMCR. Table
6.5 shows the relation between the settings of MXC2 to MXC0 and the shift size.
The MXC2 bit should be cleared to 0 when the DRAM interface is used.
RMTS2
0
1
* Reserved (setting prohibited) in the H8S/2678 Group.
DRAM Interface
Setting DRAM Space
Address Multiplexing
RMTS1
Relation between Settings of Bits RMTS2 to RMTS0 and DRAM Space
0
1
0
1
RMTS0
1
0
1
0
1
0
1
Normal space Normal space Normal space
Normal space Normal space
DRAM space
Continuous
DRAM space
Area 5
Mode register settings of synchronous DRAM *
Continuous synchronous DRAM space *
DRAM space
Reserved (setting prohibited)
Continuous
DRAM space
Area 4
Rev. 3.00 Mar 17, 2006 page 173 of 926
Section 6 Bus Controller (BSC)
DRAM space
DRAM space
Continuous
DRAM space
Area 3
REJ09B0283-0300
DRAM space
DRAM space
DRAM space
Continuous
DRAM space
Area 2
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